<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title></title>
        <style>
            html,
            body {
                background-color: antiquewhite;
                padding: 0;
            }

            * {
                padding: 0;
                margin: 0;
            }

            .main {
                width: 750px;
            }
        </style>
    </head>
    <body>
        <div class="main">
            <img src="./doc/需求.jpg" />
        </div>
    </body>
</html>
